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    Watts 3/4 in. Cast-Iron Water Pressure Safety Relief Valve 374A

    Watts 3/4 in. Cast-Iron Water Pressure Safety Relief Valve 374A

    Free Shipping on Over 500K Items!

    The 3/4 in. Cast-Iron Water Pressure Safety relief valve is used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of an iron body construction with forged bronze... more

    $24.78

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    HomeDepot.com

    (100,000+)
    Watts 174 A-3/4" Safety Relief Valve,3/4 In,30 Psi,bronze

    Watts 174 A-3/4" Safety Relief Valve,3/4 In,30 Psi,bronze

    Boiler Pressure Relief Valve, Inlet/Outlet (In.) 3/4, FNPT Connection, Material of Construction Bronze, Preset Setting (PSI) 30, BtuH Rating 650,000, Temp. Range (F) 250 Degrees , Height (In.) 5-1/8, Length (In.) 2-1/2, Standards MILV-136-RD, Type III,... more

    $48.72

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    Zoro.com

    (5,000+)
    Bell & Gossett 110121 30 PSI Bronze Pressure Relief

    Bell & Gossett 110121 30 PSI Bronze Pressure Relief

    "Bell and Gosset ASME pressure relief valve 110034 model 790-30. Bell & Gossett cast iron and bronze body ASME Safety Relief Valves are engineered in accordance with the requirements of Section IV of the ASME Boiler & Pressure Vessel Code for Heating... more

    $58.95

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    Watts Regulator 740 Model M Size: 1 1/2" X 2" Boiler 30lb.relief Valve (new)

    Watts Regulator 740 Model M Size: 1 1/2" X 2" Boiler 30lb.relief Valve (new)

    Item is a new w/o box Watts Regulator 740 Model M Size: 1 1/2" x 2" Boiler 30lb.Relief Valve (New) more

    $139.99

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    Apollo Valve 13-510 Series Bronze Safety Relief Valve, ASME Steam, 10 psi Set Pressure, 3/4" NPT Male x Female

    Apollo Valve 13-510 Series Bronze Safety Relief Valve, ASME Steam, 10 psi Set Pressure, 3/4" NPT Male x Female

    This Apollo Valve 13-510 series steam relief valve is a safety valve for protecting small to medium low-pressure steam heating boilers. It has a cast bronze body, a 10 pounds per square inch (psi) relief pressure, a 3/4" male National Pipe Thread (NPT)... more

    $22.93

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    Pressure Temp Relief; Valve

    Pressure Temp Relief; Valve

    AllPoints Number: 56-1266, ICS Number: H-1395, CCC Number: C-344, OEM Number: STR-P621174 more

    $23.00

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    Noritz IKWV6TH 6" Isolator Expansion Pressure Relief Valves IKWV6TH

    Noritz IKWV6TH 6" Isolator Expansion Pressure Relief Valves IKWV6TH

    The Isolator Valve Kit is highly recommended when installing a Noritz 531, 631, 751 or 841 Series Tankless Water Heater. Valve handles are positioned for easy access and operation, even in a recess box installation. Easy access full port drain valve... more

    $180.85

    FREE shipping

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    Homeclick

    (25,000+)
    Bell & Gossett FB-38 Pressure Reducing Valve 110192

    Bell & Gossett FB-38 Pressure Reducing Valve 110192

    "Bell & Gossett Pressure Reducing Valve FB-38 Part#110192. Reducing valves fill the system to a preset pressure for optimum performance. Combination Dual Unit Valves include pressure reducing valve and relief valve. Union connection available with... more

    $39.95

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    Homewerks Worldwide 1-1/2 in. Lead Free Brass FPT x FPT Swing Check Valve 240-2-112-112

    Homewerks Worldwide 1-1/2 in. Lead Free Brass FPT x FPT Swing Check Valve 240-2-112-112

    Free Shipping on Over 500K Items!

    The Homewerks Worldwide Lead Free Brass Swing Check Valves keeps water from backing up into a municipal water supply and prevents backflow from wells and boiler systems. The valve must be mounted horizontally or vertically to work properly. Brass... more

    $24.17

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    HomeDepot.com

    (100,000+)
    Conbraco 10-407-05 3/4" 30 Psi Boiler Relief Valve Mxf

    Conbraco 10-407-05 3/4" 30 Psi Boiler Relief Valve Mxf

    Template By Froo! CONBRACO 10-407-05 3/4" 30 PSI Boiler Relief Valve MXF CONBRACO 10-407 SERIES 3/4"MALE THREAD INLET BY 3/4" FEMALE OUTLET SET AT 30 PSI -535,000 BTU capacity. Brass/bronze safety relief valves protect ASME Section IV hot water heating... more

    $11.60

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    Rheem AP12993C

    Rheem AP12993C

    About the Rheem AP12993C Pressure Relief Valve for Tankless Water HeatersThe Rheem AP12993C is a pressure relief valve for your tankless water heater. Also known as the temperature and pressure valve, this device automatically releases excess pressure... more

    $7.49

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    Stiebel Eltron 540444 Lead-Free Brass Isolation Valve Kit with Three Valves

    Stiebel Eltron 540444 Lead-Free Brass Isolation Valve Kit with Three Valves

    Stiebel Eltron, 540444, Isolation Valve,NA, Accessory Lead-Free Brass Isolation Valve KitThis isolation valve kit includes 3 valves constructed with lead-free brass. It includes a cold-inlet and hot-outlet valve and a pressure relief... more

    $141.32 $113.05

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    Build.com

    (5,000+)
    Apollo AGD4A1 Air Gap Drain, For 1/2", 3/4", 1" Reduced Pressure Principle backflow preventers

    Apollo AGD4A1 Air Gap Drain, For 1/2", 3/4", 1" Reduced Pressure Principle backflow preventers

    The Apollo Air Gap Drain (AGD) is designed to funnel minor discharges from a Reduced Pressure Backflow Preventer's relief valve due to line pressure fluctuations and/or minor check valve fouling, into the drainage system. Drain piping is easily... more

    $50.41

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    Woodford Adjustable Rod with Pressure Relief Valve

    Woodford Adjustable Rod with Pressure Relief Valve

    Prevent Bursting! The Patented Pressure Relief Valve (PRV) prevents the faucet tube from bursting in freezing conditions, even if a hose is unintentionally left connected to the faucet. FITS MOST-COMMON WOODFORD MODELS 14, 16, 17 19, 22 and V22. more

    $27.95

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    Northman Fluid Power In-Line Hydraulic Relief Valve - 50 GPM, 100-1000 PSI Adjustable, 3550 PSI, 3/4in. NPT Ports, Model# RFT061

    Northman Fluid Power In-Line Hydraulic Relief Valve - 50 GPM, 100-1000 PSI Adjustable, 3550 PSI, 3/4in. NPT Ports, Model# RFT061

    This Northman adjustable relief valve is designed to limit the operating pressure in a hydraulic system to a maximum set pressure. The valve may be connected into the pressure line so that system... more

    $89.99

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    Cash-Acme 23261-0150

    Cash-Acme 23261-0150

    "3/4-inch NCLX-5 Domestic T&P Relief Valve, Lead Free" more

    $13.45

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    SupplyHouse.com

    (10,000+)
    Watts Brass & Tubular #374A 3/4 Boiler Relief Valve

    Watts Brass & Tubular #374A 3/4 Boiler Relief Valve

    3/4 RELIEF VALVE: Iron body relief valve for pressure protection of all types of hot water heating boiler equipment. Pressure range up to 30 lb. 550,000 BTU/hr., 3/4 I.P.S. Female inlet and outlet connections. Forged bronze inlet. more

    $39.99 $33.00

    FREE shipping

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    Rakuten.com Shopping

    (1,000,000+)
    AMERICAN VALVE 3/4-in Male Brass Boiler Drain Valve M75CSA 3/4

    AMERICAN VALVE 3/4-in Male Brass Boiler Drain Valve M75CSA 3/4

    "3/4"" IPS. CSA listed. Full packing nut." more

    $6.16

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    Lowe's

    (10,000+)
    Sloan 0301143 N/A Royal & Regal Parts & Kits Manufacturer Replacement Relief Valve 0301143

    Sloan 0301143 N/A Royal & Regal Parts & Kits Manufacturer Replacement Relief Valve 0301143

    Sloan, 0301143, Relief Valve,N/A, Royal & Regal Parts & Kits, Part Closet Relief Valve, Blue LC 2.4 gpf / 9.0 lpf more

    $4.73

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